To:     linux-wireless@vger.kernel.org
From:   Ferry Toth <ftoth@telfort.nl>
Subject: Re: Driver for RealTek RTL8811AU dual-band USB WiFi adapter
Date:   Wed, 6 Feb 2019 13:25:42 +0100
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 <211805b1-7f4a-59ea-508a-3c56ef7f0803@lwfinger.net>
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Op 04-11-18 om 17:52 schreef Larry Finger:
> On 11/4/18 9:43 AM, Chris Ward wrote:
>> I recently bought one of these 
>> https://www.amazon.co.uk/gp/product/B07C4JQZSP/ref=oh_aui_detailpage_o01_s01?ie=UTF8&psc=1 
>> ;
>> a dual-band wifi adapter. It came with source for a Linux driver, 
>> which required some patching to get it to work with the
>> 4.19 kernel. Can I interest a kernel developer to integrate this into 
>> kernel.org ? It would save me
>> effort at further patching if someone else kept it current as the 
>> kernel changes.
>>
>> The driver from Amazon is here 
>> https://drive.google.com/open?id=1AYmjFk2l5jTpnAzLPNpetSGefm4khEBi
>> and my patch is here 
>> http://tjcw.freeshell.org/Patches/rawhide-20181031.patch .
>>
>> The Amazon driver is stated to be GPL, and I am content for my work to 
>> be GPL also.
>>
>> If you need further information, please email me (tjcw at cantab.net)
> 
> Even though the driver is GPL, it would take roughly 6 months for an 
> experienced kernel coder to rewrite the crappy code that Realtek 
> provides, particularly for its USB devices, to get it into a form that 
> would be accepted into the kernel. If you are offering $10K for the 
> project, you might get some interest. :)
> 
> As I offer a number of USB drivers for Realtek USB devices at GitHub, 
> and I keep them patched for changes in the kernel API, I might consider 
> adding this one to the collection there. It would be useful if someone 
> would provide me with a sample device. Without that, I would rely on 
> remote testing. A quick look at your patches indicate that you are 
> destroying the ability to build the driver on earlier kernels. That is 
> what is done for in-kernel code, but for an external driver one needs to 
> keep a lot of flexibility.
> 
> Larry
> 
Do I understand correct that the kernel 8821ae also supports 8812? Is 
that not close to 8811?

We found a 8811AU based dongle on Ali Express for €7. I'd be happy to 
make sure you get one.